JPS6216193U - - Google Patents

Info

Publication number
JPS6216193U
JPS6216193U JP10851685U JP10851685U JPS6216193U JP S6216193 U JPS6216193 U JP S6216193U JP 10851685 U JP10851685 U JP 10851685U JP 10851685 U JP10851685 U JP 10851685U JP S6216193 U JPS6216193 U JP S6216193U
Authority
JP
Japan
Prior art keywords
expandable body
elastic expandable
cylindrical elastic
core material
fluid passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10851685U
Other languages
English (en)
Other versions
JPH0330458Y2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985108516U priority Critical patent/JPH0330458Y2/ja
Publication of JPS6216193U publication Critical patent/JPS6216193U/ja
Application granted granted Critical
Publication of JPH0330458Y2 publication Critical patent/JPH0330458Y2/ja
Expired legal-status Critical Current

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  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Description

【図面の簡単な説明】
図面は本考案の実施例を示すもので、第１図は
弾性膨脹体の縦断面図、第２図はその端面図、第
３図及び第４図は穿孔に装置を挿入した状態と膨
脹させた状態を示す断面図、第５図は別な実施例
を示す断面図、第６図は従来の弾性膨脹体を装着
した装置の断面図、第７図はその膨脹状態を示す
断面図である。 １…弾性膨脹体、２…環状空間、３…開口部、
４，４…環状体、５…流体通路、６…芯材、１０
及び１１…ワツシヤ、１３…ナツト体。

Claims (1)

    【実用新案登録請求の範囲】
  1. 一端部から軸芯方向に流体通路を設けた芯材の
    外周に筒状弾性膨脹体を被嵌すると共に該筒状弾
    性膨脹体の両端面をストツパーにより芯材に固定
    し、芯材の前記流体通路を通して筒状弾性膨脹体
    の内周面側に圧力流体を圧入することにより筒状
    弾性膨脹体を外径方向に膨脹させるようにした液
    圧破砕装置において、前記筒状弾性膨脹体の両端
    内部に非伸縮性の環状体を装着又は埋設したこと
    を特徴とする液圧破砕装置における弾性膨脹体。
JP1985108516U 1985-07-16 1985-07-16 Expired JPH0330458Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985108516U JPH0330458Y2 (ja) 1985-07-16 1985-07-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985108516U JPH0330458Y2 (ja) 1985-07-16 1985-07-16

Publications (2)

Publication Number Publication Date
JPS6216193U true JPS6216193U (ja) 1987-01-30
JPH0330458Y2 JPH0330458Y2 (ja) 1991-06-27

Family

ID=30985786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985108516U Expired JPH0330458Y2 (ja) 1985-07-16 1985-07-16

Country Status (1)

Country Link
JP (1) JPH0330458Y2 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6066789U (ja) * 1983-10-07 1985-05-11 奥村機械製作株式会社 筒状弾性膨脹体

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6066789U (ja) * 1983-10-07 1985-05-11 奥村機械製作株式会社 筒状弾性膨脹体

Also Published As

Publication number Publication date
JPH0330458Y2 (ja) 1991-06-27

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